Maxem

Any Forecasted lap times?
I'll wager you'll match the '64 times before day's end.
No pressure!

Macca

Hi Nik. No what we are agreeing above is that 214s are 1.5s quicker at Taupo. 214s are a full slick profile with two small radial groves. They are not dot rated (street legal).

We are suggesting 221s are 0.75s faster than R888 at Taupo. 221 have a patterned groove similar to R888 and are dot rated. We are using mostly soft compound C70/71 front and rear. There is no comparative data easy to find as Hankook 221 are not officially available in USA and UK markets where R888 are popular. Our Australian Porsche cousins are using 214 and occasionally 221 and the Japanese guys use 221 for time attack (its the reigning tyre currently). My guess from reading is that R888 would likely provide around 30% more mileage for similar use. Pete is our first guy to wear out a set of 221 on his C4 and has had around 7 full track days and 2000km road use from them (Pete correct me if I am wrong here). Hes pushing his car pretty hard but not running crazy camber so you may get between 5-8 full track days from these depending on driver, car and geo. I have 2 track days and 1600 fast touring kms on mine and I measured them up at approx 35-40% worn but Im running a fair bit of negative camber at the front and was pushing on a bit towards the end of the sessions. My guess is I would get around 8000 touring Kms from these or 4-5 full track days and 2500km fast touring given my Geo. I feel a fresh set of these would run a Targa Tour NZ in the front group (fast) but be good for maybe 1 full track day afterwards. Thats 650km competition kms and 1500 touring kms....

Macca

Im not far off David. A good Bridgestone series time in a sorted 944s2 is 1.16.8XX

I imagine by the time you complete your first fill track day 02 November and you have gotten use to the lines and braking points you will be low 1.18s - you may even get a lap or two in slightly under this dependent on traffic and assuming the set up is close to ideal.

Raising the bar Pete. I was hoping to give you a run into the low 1.18s my next time out at HD. By the time I get back to HD maybe late 2014 I suspect the posts will have moved so far away Ill only be seeing your dust!

peterC2S

That's about right - I didn't keep a log but maybe only 6 track days rather than 7. Front and rear are both soft and the rears still have a bit of life in them. So would the fronts but as I'm really only running road camber (a mistake!) the fronts are corded on the outside shoulders due to hard cornering. I'm pretty happy with that life being soft compound. Will definitely get them again though maybe 214s on the 944.

Honestly I'm not even going to think about times on the 15th. Just try and get round nice and smooth and build from there. Car is about 1200kg currently so 250kg lighter than the C4 as a starting point. Theoretically that should make it capable of 17's with a decent driver.

Macca

Pete. That's the way. Take it easy first time out and dont even take a timer. Smooth is the way. Its not only lighter but much better balanced. I think consistent mid 1.17s are realistic once you have a couple of days under your belt. If you throw 214s on it you may not be legal on the way to the track..?

peterC2S

Did you not see the photo? No issues getting to the track with a 2nd set of wheels if need be. Has a centre jacking point as well so can do 2 wheels at once.

Macca

Silly me. Of course!

Obsessed

He's actually done a few more than that: http://www.nzherald.co.nz/motoring/n...ectid=11127667. Amazing!

Obsessed

You need to take all the decals off and then I'd "accidentally" drive it home... oops!

Obsessed

All done Doug?

mjg

They are DOT rated. Quoting Hankook Australia's site: "(road legal with DOT number)".

Macca

My bad I stand corrected. I had thought Steve told me that but must be wrong. I guess its why they have the groove. I really wonder how the WOF boys would view the tyre lol!

peterC2S

Matt - I'm not sure that being DOT rated automatically makes them road legal in NZ. The rules are pretty complex as they also (appear to) import some overseas rules given so many vehicles and tyres come from offshore. But the NZTA general safety rule that I could find says;

Tread pattern and tread depth

Except as otherwise provided in this clause, a tyre on a motor vehicle must have a tread pattern, excluding any tie-bar or tread-depth indicator strip, of not less than 1.5 mm in depth across at least three-quarters of the width of the tread and around the entire circumference of the tyre.

So given its two radial grooves I doubt the 214's would meet the requirement of having 1.5mm depth across 3/4 of the width of the tread. Technically it is arguable as the tread itself is confined to those to grooves therefore 3/4 of that width is effectively the same thing. Not a very well drafted rule.

Be interested if anyone has anything more definitive on this.

Macca

Thanks Pete. On that basis the 214 isnt road legal. Im fairly sure I recall Steve saying I couldn't use that tyre to drive to the track. I think Paul who has some 214 was also of the opinion he couldn't get a WOF with them.

Steve will know for 100% sure as he issues WOFs.

gt38088

what compound options does 221 come in? Looking for a set of tyres for the kit car and given light weight can go reasonably soft